From owner-freebsd-current@FreeBSD.ORG Wed Jul 9 15:03:25 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 7922C37B417 for ; Wed, 9 Jul 2003 15:03:25 -0700 (PDT) Received: from harmony.village.org (rover.bsdimp.com [204.144.255.66]) by mx1.FreeBSD.org (Postfix) with ESMTP id B122943FCB for ; Wed, 9 Jul 2003 15:03:24 -0700 (PDT) (envelope-from imp@bsdimp.com) Received: from localhost (warner@rover2.village.org [10.0.0.1]) by harmony.village.org (8.12.8/8.12.3) with ESMTP id h69M3NdP044534; Wed, 9 Jul 2003 16:03:24 -0600 (MDT) (envelope-from imp@bsdimp.com) Date: Wed, 09 Jul 2003 16:03:22 -0600 (MDT) Message-Id: <20030709.160322.123424797.imp@bsdimp.com> To: rehsack@liwing.de From: "M. Warner Losh" In-Reply-To: <3F0C8F20.6040102@liwing.de> References: <20030709150718.GC28375@Odin.AC.HMC.Edu> <20030709.151856.81408195.imp@bsdimp.com> <3F0C8F20.6040102@liwing.de> X-Mailer: Mew version 2.2 on Emacs 21.3 / Mule 5.0 (SAKAKI) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit cc: ache@nagual.pp.ru cc: freebsd-current@freebsd.org cc: l.ertl@univie.ac.at Subject: Re: HTT on single CPU? X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jul 2003 22:03:25 -0000 In message: <3F0C8F20.6040102@liwing.de> Jens Rehsack writes: : M. Warner Losh wrote: : : > In message: <20030709150718.GC28375@Odin.AC.HMC.Edu> : > Brooks Davis writes: : > : P4's below ~3.1GHz do not actually provide logical CPU support. : > : > We have several 2.4GHz parts that appear to contradict this : > statement. However, we can't use HTT w/o a proper motherboard that : > supports HTT CPUs. : : How can I found out whether a board supports HTT or not? : I haven't seen it in none description I checked. Are some : chipsets (865, 875) always ready or is the bios programmer : the guy who must activate this feature? Boot a SMP kernel. If you get a panic, your board doesn't support it. :-) We've seen some mobos that just work, while others have a really ****ed up MPTABLE which makes it hard/impossible for FreeBSD to support things. Warner